Overview

Arriving on Space Station Nerva in its distant past, the Doctor, Sarah and Harry find its crew threatened by a mysterious plague. Discovering that things are not as they seem, they uncover a Cyberman plot to destroy Voga, planet of gold.

Details

Cast

Tom Baker

Elisabeth Sladen

Ian Marter

Ronald Leigh-Hunt

William Marlowe

Kevin Stoney

David Collings

Alec Wallis

Michael Wisher

Christopher Robbie